- IAIN MCLEOD LTDActive - Proposal to Strike off- SC591061 - Incorporated on 12 March 2018 
- IAIN SMALLS LTD- SC656977 - Incorporated on 10 March 2020 
- IAIN DENTON LTD.- 05938646 - Incorporated on 18 September 2006 
- IAIN ROWELL LTD- SC464443 - Incorporated on 25 November 2013 
- IAIN A ANDREW LTD- SC810142 - Incorporated on 10 May 2024 
- IAIN COWDEN LTD- 07680263 - Incorporated on 23 June 2011 
- IAING LIMITED- 07222094 - Incorporated on 13 April 2010 
- IAIN FRENCH LTD- 11790183 - Incorporated on 28 January 2019 
- IAIN JAMES TM LTD- 10277264 - Incorporated on 13 July 2016 
- FORMATIVE ARCHITECTS LIMITED- NI061683 - Incorporated on 2 November 2006 
- IAIN BORNER LTD- 08083695 - Incorporated on 25 May 2012 
- DUGGIE & IAIN LTDDissolved- 07697428 - Dissolved on 2 October 2012 
- IAIN CONWAY LTD- 08652263 - Incorporated on 15 August 2013 
- IAIN WALLIS LLP- OC387061 - Incorporated on 6 August 2013 
- MR.MR. LTDDisolved- 14252327 - Dissolved on 5 December 2023 
- MR MR2 LTD- 11218539 - Incorporated on 21 February 2018 
- MR & MR LTD- 16489396 - Incorporated on 2 June 2025 
- IAIN WALLACE LTD.- SC406686 - Incorporated on 2 September 2011 
- IAIN P THUBRON LTDDissolved- 06493261 - Dissolved on 3 July 2012 
- IAIN POLLARD LTD- 07898137 - Incorporated on 5 January 2012